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Measuring Instruments for Diffuse Transmission Visual Density
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JJG 2028-1989 Diffuse transmission visual density (black and white density) measurement instrument verification system JJG2028-198
2024-08-15 category：National Metrology Standard (JJ)+ View
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Measuring Instruments for Vickershandness
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JJG 2026-1989 Vickers Hardness Measuring Instrument Verification System JJG2026-1989 Standard Download Decompression Password: www
2024-08-15 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Capacity Measures(glass)
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JJG 20-2001 Verification Procedure for Standard Glass Volumetric Instruments JJG20-2001 standard download decompression password:
2024-08-15 category：National Metrology Standard (JJ)+ View
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Viscosity Measuring Instruments
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JJG 2016-1987 Viscosity Measuring Instrument Calibration System JJG2016-1987 standard download decompression password: www.bzxz.ne
2024-08-15 category：National Metrology Standard (JJ)+ View
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Brinel Hardness
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JJG 2005-1987 Brinell Hardness Measuring Instrument Verification System JJG2005-1987 standard download decompression password: www
2024-08-15 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Instruments for Measuring the Moisture Content of Grain with Baking Method
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Confirmed on September 8, 2005 JJG 658-1990 Calibration Procedure for Grain Moisture Analyzers by Drying Method JJG658-1990 Standa
2024-08-15 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Flow Standard Facilities by Master Meter Method
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JJG 643-2003 Verification Procedure for Standard Meter Method Flow Standard Device JJG643-2003 standard download decompression pas
2024-08-15 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Differential Pressure Type Flowmeter
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JJG 640-1994 Verification Procedure for Differential Pressure Flowmeter JJG640-1994 Standard download decompression password: www.
2024-08-15 category：National Metrology Standard (JJ)+ View
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